line-element : 18 phrases in 11 subjects |
Aerohydrodynamics | 1 |
Antennas and waveguides | 1 |
Astronautics | 2 |
Automated equipment | 1 |
Construction | 1 |
Electronics | 3 |
Mathematics | 3 |
Physics | 2 |
Technology | 2 |
Telecommunications | 1 |
Weapons of mass destruction | 1 |